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Finding the Fourth Proportional to 8,581.14, 12,776.13 and 8,537.40

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Solution

The fourth proportional to 8,581.14, 12,776.13 and 8,537.40 is: 12,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.14 : 12,776.13 = 8,537.40 : x
  2. Step 2: Convert to fraction form
    8,581.14/12,776.13 = 8,537.40/x
  3. Step 3: Cross multiply
    8,581.14x = 12,776.13 × 8,537.40
  4. Step 4: Simplify right side
    8,581.14x = 109,074,932.26
  5. Step 5: Solve for x
    x = 109,074,932.26/8,581.14
  6. Step 6: Final answer
    x = 12,711.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.